Author

Qi-Chao Zhao

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#machine learning Preprint Oct 2026

Why On-Policy Distillation Sometimes Fails: Vanishing Learning Signals

On-policy distillation (OPD) enables effective capability transfer between language models, yet the mechanisms underlying its failures are not fully understood. Across code generation and mathematical reasoning, OPD with larger-scale teachers exhibits early loss plateaus, with an average final loss reduction of 25.1% a...

Lei Zhao, Qi-Chao Zhao, Bo-Wen Zuo et al. · 0 citations

#artificial intelligence Preprint Sep 2026

Spotter: Let the Embodied Model Lead, and the VLM Reflect for It

Spotter is proposed, which reverses the roles: the embodied model leads and executes continuously, while the VLM runs in parallel, monitors through a lightweight local screener, intervenes only when an error is detected, reflects on and corrects it, and returns control.

Long Li, Qi-Chao Zhao, Yue Yang et al. · 0 citations